On a boat, where do you keep a compost pile? If you dump it on shore here in the keys, you would be arrested especially since that turd from this morning is still steaming.
I'm not bashing these things, but they just don't seem appropriate for cruisers or liveaboards. Like I said earlier, this could change if the marina was willing to put in large compost bins.
You would need a fairly large boat to have a compost pile.
However, as I mentioned earlier, it is pretty simple to simply snap on the lid and store the bucket until such time an appropriate dumping place can be found. In fact, with the introduction of some Black Soldier fly larvae and earthworms the composting can be accomplished in the bucket.
Still, I understand your point and actually, liveaboard cruisers are actually a small percentage of boat owners.
The vast majority are day sailors and weekenders who could very easily use composting heads.
A huge number of people on land could easily convert to composting. Not just their humanure but their kitchen scraps, lawn clippings etc. etc.
Hopefully as awareness increases and the demand increases the marinas will add bins. As it stands now, most of the cruisers who do use composting toilets (and there are a lot of them who in spite of Maine's experience are very satisfied) simply dump the contents into the marina dumpsters. Both wasteful and unsanitary. At least most of them put it into plastic bags first.
In the meantime, if anyone needs to dump their compost in the Tampa Bay area. I offer my compost pile.
Nothing changes if no one challenges the norm.